Mortising-machjne



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E. J. HUMPHREYS, MORTISIING MACHINE.

N 294,389. Patented Mar 4, 1884.-

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(No ModeL) Patented Mar. 4.1884.

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rraEn EST T S; ATENT tribe.

EDWARD J. HUMPHREYS, or MILLBURY, MASSACHUSETTS.

MoR-risiNe- MACH m E.

SPECIFICATION forming part or Letters Patent nofeeeesau ted March 4, 1884., d

-Application filed October 22,1883. (No mode-1.)

To (1.5. whom it may concern:

of Millbury, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Machines for Mortising Pulley-Stiles for Window-Frames; and I do hereby declarethat the following is a full, clear, and exact description of the same, I reference being had to the accompanying drawings, forming a part of this specification, and

in which- I Figure 1 represents a top or plan view of a pulley-stile mortising-maehine with my im provements applied thereto, which will be hereinafter more fully set forth. Fig. 2 rep resents aside view of the'parts shown in Fig. I

1, looking in the direction indicated by arrow 0, same figure. Fig. 2 represents a side view of a portion of myimprovements shown in Fig. 1, hereinafter described. sents upon an enlarged scale a vertical section through a part of the machine, taken on line AB, Fig. 1, looking in the direction of arrow (1, same figure, showing aside view of my improvements upon the machine. Fig. 3 represents a horizontal cross-section taken on line a b, Fig. 3, looking down, as shown by arrow, same figure; and Fig. 4 represents the upper end of an ordinary window-pulley stile, with two pulley mortises or slots cut in the same, the right-hand one being the old style or form of mortise, and the left-hand one a mortise such as is cut by my improved machine.

The object of my invention is to secure additional improvements upon a similar pulleystile mortising-machine, for which Letters Patent No. 263,752 were granted to A. S. Bangs, September 5, 1882.

As my present machine is similar in most respects to the one previously patented by said Bangs, as aforesaid, only my improvements and so much of the old machine as is necessary to give a clear understanding of said improvements'will be described in the following specification. v

My said improvements consist in making the crank-shaft and its bearing adjustable, and in the mechanism employed for operating said.

crankshaft forward and back by an independent movement, so as to form shallow mortises or rescesses in the face of the pulley-stiles beyond the ends of the usual mortises or slots formed Fig. 3 repre g r .1] in the same for receiving the window-pulleys, Beitknown that-LEDwAnD J. HUMPHREYs,

as shown and described in the aforesaid Letters Patent, the purpose of said additional shallow mortises being to receive ears or flanges formed upon each end of the face of the pulleys, for fastening them to the pulley-stiles after being fitted in place, as will be hereinafter more fully set forth. i

To enable those skilled in the art to which my invention belongs to make and use the same, I will proceed to describe itmore in detail.

In the drawings, 0 represents the carriage, which is worked longitudinally, and upon which is fitted to turn the boring-bits Deon'e set over the other. Said bits are turned by belt connection with a large driving-pulley, E, fastened upon the main driving-shaft F. Driving-power is imparted from the main driving shaftlto the crankshaft G by means of the belt H} passed over the pulleys I J, fastened to the ends of said shafts. Connection is made between the carriage O and crankshaft by means of the connectingrod K and crank L, the latter, when rotated, operating the carriage through said connecting-rod forward and back the distance required to form the mortises through the pulley-stile the required length; and to form the shallow recesses or mortises 6, before referred to, for the holding-flanges of the pulleys, a still greater longitudinal movement is given to the carriage and its boring-bits independent of theforward and backward movement imparted by the crank L in the following manner: The hear: ing M of the crank-shaft G is fitted to slide forward and back in a way, Nyformed in the bed 0 of the machine, and to the forward or inner end of said movable bearing M ishinged, at f, one end of a horizontal connecting-lever, g, while its opposite end is hinged at! to a rocking-lever, P, hinged to the bed 0 at i, and provided at its upper end with an oper ating-handle, 1?. By this arrangement, as will be seen, the crankshaftmay be moved forward or back, as desired, and to hold it in alocked position after adjustment the following device is in this instance employed, al though any other similar means of fastening may be adopted, if preferred. A hearing, Q, is rigidly fastened to bed 0, having a segmental part, Q, formed or secured upon its 'upper side, and in said segmental part are formed segmental slots 70 and notches Z Z Z. In the slots is are fitted studs m, which are formed upon or fastened to plates 01, having notches 0 formed in their upper edges, and which are also prox'ided with set or thumb screws 1), for fastening the plates at in any position to which they may be adjusted by sliding their respective studs in the slots k. A vertical bar, q, is fitted to slide up and down in a groove, q, formed in the outer side of the rocking-lever P, beingheld in position by passing through bearings g (f. The lower end of said bar q is provided with a foot, 1, having projections 0", formed on its 'under side, which fit into the notches Z Z Z or'o, when the lever is swung around into the proper position for them to enter said notches. The upper end of bar (1 is hinged at s to a crank-lever, t, which is hinged at u to rocking-lever P, and is also provided with an operating-handle, o, and spring 10, for holding it open, as is shown in Fig. 2 of the drawings, so as to hold the i projections r in their respective notches, and thus lock the rocking-lever, and consequently the crank shaft. in its adjusted position. Vhen the rocking-lever P is in a vertical position, as shown in the drawings, the crankshaft and its bearing are in their proper positions for the boring-bits to form the slots through the pulley-stiles to receive the body of the pulleys, or, in other words, in the positions that they occupy in the said Bangs machine. In adjusting said parts to form the shallow mortises e, the rocking-lever is swung either to the right or left, as shown by dotted lines P in Fig. 3, so as to increase the capacity of the boring bits longitudinally, and thereby out said mortises a.

The bits used in my present machine are similar to those of the Bangs machine, and

1. Inamortising-machine,thecombination,

with the carriage 0, upon which are mounted boring-bits D, operated substantially as described, the connecting-rod K, and crank L, of the crank -shaft G, having an adjustable bearing, M, and means, substantially as described, for adjusting said bearing M longitudinallyupon the bed 0 of the machine, all constructed and operated substantially as shown, and for the purpose stated.

2. In a mortising-maehine, the crank-shaft G, having a sliding and adjustable bearing, M, and means for operating the same, substantially as described,'in combination with the carriage 0, upon which are mounted the boring-bits D, operated substantially as described, in connection with rod K and crank L, all constructed and operated substantially as shown and described.

3. The combination, with the crankshaft G and sliding bearing M, of'a suitable connecting-rod, 9, bed 0, fixed segmental bearing Q, and suitable operating-lever, P, substantially as and for the purposes set forth.

4. In a mortising-machine, the combination, with the bed 0, way N, and fixed segmental bearing Q, of crank-shaft G, adjustable bearing M, connecting-rod g, and suitable operating-lever, P, all constructed and operated substantially as shown, and for the purposes stated.

EDWARD J. HUMPHREYS.

\Vitnesses:

J OHN G. DEWEY, CHAS. D. GAY. 

